The
Magic "28" Multiplication Facts:
(If you know
these 28 problems and their
reciprocals
than you can do any Multiplication problem!)
|
X |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
3 |
9 |
12 |
15 |
18 |
21 |
24 |
27 |
|
4 |
16 |
20 |
24 |
28 |
32 |
36 |
|
|
5 |
25 |
30 |
35 |
40 |
45 |
||
|
6 |
36 |
42 |
48 |
54 |
|||
|
7 |
49 |
56 |
63 |
||||
|
8 |
64 |
72 |
|||||
|
9 |
81 |
 |
 |
 |